Eevee scarves
From Pixelmon Wiki
The Eevee Scarves are a collection of player cosmetics based on Umbreon, Espeon, Flareon, Glaceon, Jolteon, Vaporeon, Leafeon, and Sylveon. These scarves can be given out by servers via plugins and quests. They can be given in single-player through the use of external quest JSONs. Owned Eevee Scarves do not transfer between servers or single-player worlds.
Once obtained, an Eevee Scarf can be activated by typing /redeem gui
and selecting it from the Hat drop-down menu.
If you are unable to see a scarf in the list, type /redeem
to refresh your Cosmetics and check again.